Question

When the polynomial P(x) = 3x3 + kx2 + 45x + 25 is divided by x + 5, the remainder is 0. Which of the following is also a factor of P(x)?

Answer 1

@Cas_fangirl_14

Answer 2

Find k first using that when P/(x+5) you have remainder 0
Use remainder theorem
That is plug in -5 into P(x)
and solve P(-5)=0 for k

Answer 3

How do i find K? Sorry Im awful at math :c

Answer 4

@freckles

Answer 5

@Cas_fangirl_14